Adhesive tape or sheet for application on skin

A skin and adhesive layer technology, applied in the direction of bandages, medical patches, adhesive types, etc., to achieve the effects of reducing skin irritation, high air permeability, and excellent fit

Inactive Publication Date: 2015-09-23
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is still difficult to say that the moisture permeability of the conventional skin-fitting tape or sheet has a sufficient level.

Method used

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  • Adhesive tape or sheet for application on skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Uniformly dissolve and mix a monomer mixture containing 30 parts of isononyl acrylate, 65 parts of 2-methoxyethyl acrylate, and 5 parts of acrylic acid in 100 parts of toluene, and add 0.2 parts of azobisisobutyronitrile as a polymerization initiator , and carry out the copolymerization reaction.

[0047] With respect to 100 parts of the obtained acrylic copolymer, 60 parts of glyceryl tricaprylate and 0.13 parts of a trifunctional isocyanate compound (trade name CORONATEHL, manufactured by Nippon Polyurethane Co., Ltd.) as a crosslinking agent were blended in toluene to produce a uniform bond. agent solution.

[0048] Next, this solution was applied on the release-treated surface of the release sheet after the release treatment so that the thickness after drying was 15 μm, and dried at 120° C. for 3 minutes to prepare an adhesive layer. Next, the prepared adhesive layer was transferred and bonded to one side of a polyether polyurethane film (thickness 15 μm), and aged...

Embodiment 2

[0050] The skin-attaching tape of the present invention was obtained in the same manner as in Example 1 except that tricaprylic acid glycerin in Example 1 was set to 45 parts.

Embodiment 3

[0052] The skin adhesive tape of this invention was obtained in the same manner as in Example 1 except having made tricaprylic acid glycerin into 30 parts in Example 1.

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Abstract

A pressure-sensitive adhesive tape or sheet for application on skin includes a substrate and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate. The pressure-sensitive adhesive layer contains: 100 parts by weight of an acrylic copolymer prepared by copolymerizing a monomer mixture comprising from 5 to 38% by weight of an alkyl (meth)acrylate monomer, from 61 to 90% by weight of an alkoxy group-containing ethylenic unsaturated monomer and from 1 to 10% by weight of a carboxyl group-containing ethylenic unsaturated monomer; and from 30 to 60 parts by weight of a carboxylic acid ester in a paste form or liquid form at room temperature. The acrylic copolymer has been subjected to a crosslinking treatment.

Description

technical field [0001] The present invention relates to a skin-adhering tape or sheet used in the field of medical care and hygiene. Background technique [0002] Since the adhesive used for the skin-attaching tape or sheet is usually required to adhere reliably to the skin surface, it is necessary to set the skin adhesive force to a certain level. However, when the skin adhesive force is set high, skin irritation may occur when peeling from the skin surface. In addition, when sticking to the skin surface for a long time, itching may occur on the skin surface, and various dermatitis may be caused depending on the situation. [0003] In addition, since the skin surface usually has an irregular and complicated structure, it is difficult for the adhesive to completely adhere to the applied skin surface. Therefore, it is considered to improve the adhesiveness by softening the adhesive. However, when the adhesive is softened, the cohesive force of the adhesive decreases. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/26A61L15/58A61L15/40
CPCB32B2250/24B32B2307/724B32B2405/00A61F13/02C09J2433/00C09J7/00B32B2556/00B32B2307/748B32B2535/00A61L24/06B32B2250/02B32B27/08B32B27/308C09J7/0207C08K5/10C09J133/00C09J133/08A61F13/0246A61F13/0253C09J7/385Y10T428/2891C09J2301/408C08F220/281C08F220/1809C08F220/06
Inventor 中川雅央菊田典之滨田昌志东尾和广
Owner NITTO DENKO CORP
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